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Indoor positioning method and system based on mobile phone sensor

An indoor positioning and sensor technology, used in electromagnetic radiation induction, navigation calculation tools, road network navigators, etc., can solve the problems of inability to achieve indoor positioning accuracy and positioning cost, and achieve the effect of low positioning cost and high positioning accuracy

Inactive Publication Date: 2013-10-16
张砚炳 +2
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AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide an indoor positioning method and system based on mobile phone sensors with high indoor positioning accuracy and low positioning cost to solve the problems that traditional positioning methods cannot achieve indoor positioning accuracy and high positioning cost.

Method used

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  • Indoor positioning method and system based on mobile phone sensor
  • Indoor positioning method and system based on mobile phone sensor
  • Indoor positioning method and system based on mobile phone sensor

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 Shown, in one embodiment, a kind of indoor positioning method based on mobile phone sensor, comprises the following steps:

[0021] Step S110, generating a vector map of the room to be located.

[0022] Space coordinate conversion and model simplification:

[0023] (1) Coordinate transformation principle

[0024] There are the following two coordinate systems in formula derivation.

[0025] 1 geographic coordinate system (n system)

[0026] The geographical coordinate system uses a certain point on the surface of the earth as the origin O of the coordinate system. The direction of the coordinate axes in the coordinate system is related to the actual building. the intersection of the line connecting the center and the surface of the standard sphere). And the n system is selected as the coordinate system for calcul...

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Abstract

The invention relates to an indoor positioning method based on a mobile phone sensor. The method comprises the steps that: a vector map of the inside of a room requiring positioning is generated; a reference point is set in the vector map, and the position coordinate of the reference point is determined; the minimal distance between a point to be positioned and the reference point is calculated; and the coordinate of the point to be positioned can be determined according to the position coordinate of the reference point. Also, the invention provides an indoor positioning system based on the mobile phone sensor. According to the indoor positioning system and method based on the mobile phone sensor, indoor positioning is carried out based on built-in gyroscope, orientation sensor and acceleration sensor of the mobile phone. Positioning precision is high, and positioning cost is low.

Description

technical field [0001] The invention relates to indoor positioning technology, in particular to an indoor positioning method and system based on mobile phone sensors. Background technique [0002] With the development of human beings, people will have more and more buildings and buildings with complex structures on the surface and underground. After having so many buildings, indoor positioning is essential. At present, commonly used indoor positioning methods include GPS positioning, WiFi hotspot positioning and RFID radio frequency positioning. Among the above positioning methods, GPS positioning is simple and convenient, but the accuracy cannot reach the level of indoor use. WiFi hotspot positioning and RFID radio frequency positioning require high costs and cannot meet the requirements of popularization. Contents of the invention [0003] Based on this, it is necessary to provide an indoor positioning method and system based on mobile phone sensors with high indoor po...

Claims

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Application Information

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IPC IPC(8): G01C21/20G01C21/28G06K7/10
Inventor 张砚炳沈嘉琪岳岱安
Owner 张砚炳
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